LCM of 338, 392, 721, 586, 991
Reviewed By : Rajashekhar Valipishetty
Last Updated at : Mar 29,2023
Find the LCM of 338, 392, 721, 586, 991 with the LCM of Two or More Numbers Calculator. Here we are teaching you two different methods through which you can calculate the LCM of 338, 392, 721, 586, 991. So, keep reading to learn more.
Given numbers are 338,392,721,586,991
The least common multiple of numbers can be find using the prime factorization method or LCM formula.
The LCM of 338,392,721,586,991 is 1981304706472.
Find LCM of 338,392,721,586,991 with Prime Factorization
| 2 | 338, 392, 721, 586, 991 |
| 7 | 169, 196, 721, 293, 991 |
| 169, 28, 103, 293, 991 |
Multiply the prime numbers at the bottom and the left side.
2 x 7 x 169 x 28 x 103 x 293 x 991 = 1981304706472
Therefore, the lowest common multiple of 338,392,721,586,991 is 1981304706472.
LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
Firstly, we have to find the product of all the numbers.
338 x 392 x 721 x 586 x 991 = 55476531781216
Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.
338 : 1, 2, 13, 26, 169, 338
392 : 1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392
721 : 1, 7, 103, 721
586 : 1, 2, 293, 586
991 : 1, 991
1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 338,392,721,586,991, is 1.
Now, the common factors can be found like this.
338:2x 13x 13
392:2x 2x 2x 7x 7
721:7x 103
586:2x 293
991:991
From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.
2x 2x 7 = 28
Therefore, the value for common factors is 28.
Now that we have all the elements of the formula, we can plug them in to calculate the LCM.
LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}
LCM = 55476531781216/(1x28)
LCM = 55476531781216/28
LCM = 1981304706472
Thus, we can understand that the LCM of 338,392,721,586,991 is 1981304706472.
LCM of two or more Numbers Calculation Examples
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FAQs on LCM of 338, 392, 721, 586, 991
1. What is the LCM of 338, 392, 721, 586, 991?
Answer: LCM of 338, 392, 721, 586, 991 is 1981304706472.
2. How to calculate the LCM of 338, 392, 721, 586, 991?
The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 338, 392, 721, 586, 991.
3. What is the LCM formula?
The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.